Question

find an equation of the line containing (-2,1) with slope 8.

Answer 1

wrong it's actually y=8x+17

Answer 2

where is the 17 from?

Answer 3

y=mx+b is an equation of the line. since we have the slope and coordinate point. we plug in the slope and the x,y point in also.
1=8(-2)+b and solve for b
1=-16+b Since we subtract 1--16=1+16
b=17

Answer 4

thanks